Tall Databand breaks onto new page

[eh13]

I have a report where I have a tall databand with a group header, I have CanBreak on the databand set to true and KeepGroupHeader set to false, but the databand is 48.4cm tall so it naturally must break. Unfortunately when the report is rendered the first page has the group header and the rest is blank and page 2 looks exactly like page 1 should.

Is there a way to specify where a break like this occurs or to otherwise get the report not to waste the first page?